According to Strong, Thayer, NASEC, and all others I could find the word used in all of those verses is epi (ἐπί) and means on, or upon. Of the 896 instances of the use of that word in scripture not once is it translated by them as in nor should it be.
None of the other versions do.
That said, the Seal of God may not mean a visible seal on the skin but a Seal in the Mind...same for the Mark of the Beast.